S. Gregory of Tours, in his De Gloriâ Martyrum relates how after the Peace of the Church, when the tombs of these two famous martyrs were searched for and discovered, in the historic crypt of their tomb were found the sad remains of a large group of Christians--men, women, and even children. Some time after the martyrdom of SS. Chrysanthus and Daria, a number of Christians secretly came to the crypt to pray at the martyrs’ tomb. Information was given, and the Imperial authority with all haste directed that the entrance should be walled up. This was speedily done, and the group of Christian worshippers were thus buried alive. The bodies were found, as Gregory of Tours relates, and with them the eucharistic vessels of silver they had brought for the celebration of the Holy Communion. Pope Damasus, who made this singular discovery in the latter years of the fourth century--about a century after this wholesale martyrdom--would not allow the group or the sacred tomb to be touched; but simply in the piled-up stones caused a little window to be made, that pilgrims might look on and venerate this strange sad group of martyrs. De Rossi ever hoped to come upon this little window in question, and after fifteen centuries again to gaze with all reverence on this “miniature Christian Pompeii!” S. Gregory in the sixth century tells us the little window looking on this moving scene was shown to pilgrims of his day and time. De Rossi’s hope--nay more, his expectation--of finding the window has not yet been gratified, the ruinous state of the catacomb preventing any exhaustive search. There are many martyrs’ tombs and historic crypts, we learn from the Pilgrim Itineraries, still to be uncovered in this group of cemeteries. _The Cemetery of S. Priscilla._--Recent researches have added much to our previous knowledge of this catacomb, and have confirmed De Rossi’s judgment of its great antiquity and importance. Indeed, it ranks with the great network of the Callistus and Domitilla Cemeteries on the Appian and Ardeatina Roads--not in extent perhaps, but certainly in antiquity and interest. It lies along the Salarian Way above described as on the north of the city. De Rossi’s words are memorable: “The Cemetery of Priscilla is a centre where the various memories connected with the Churches of Pudens and Priscilla meet like lines drawn from different places.”